Performance Analysis of Electrical Equivalent Circuit Models of Lithium-ion Battery

Abstract

Electrical equivalent circuit models of battery helps us to understand the behavior in terms of its electrical characteristics, charging status and battery capacity to improve the system performance and increase the overall efficiency. In this paper different models of lithium-ion battery are discussed and their performance analysis is studied along with the benefits and demerits which will help us to select an ideal model which will suit best to a power electronics application. It is also observed that accurate electrical equivalent model is best suited for power applications as it takes into account the battery life time in its model. Charging and discharging characteristics of an ideal lithium-ion battery model are plotted using matlab to match the performance with the battery model specifications of lithium ion battery.